#ifndef system_address

#define	system_address
#define AHB_LED_BASE					0x50000000  
#define AHB_GPIO_BASE					0x51000000
#define AHB_TIMER_BASE				0x52000000
#define AHB_TIMER_CONT				0x52000008
#define AHB_UART_BASE					0x53000000
#define AHB_VGA_BASE
#define NVIC_INT_ENABLE				0xE000E100
#define NVIC_INT_PRIORITY0		0xE000E400

#endif